Recording weighing-scale.



R. Y. THOMAS.

RECORDING WEIGHING SCALE.

1121 110111101; FILED T221318, 1911.

Patented Dec. 12, 1911.

2 SHEETS-SHEET 1.

R..Y. THOMAS. RECORDING WEIGHING SCALE. urmoutox'rum rm 1a, 1911.

Patented "Dec; 12, 1911.

2 BHEETB-SHEET 2.

. 79-7- 0 i g o E E \f I l l O E 0 {7r 31W WWW 'w MW UNITED STATESPATENT OFFICE.

RUFUS Y. THOMAS, OF NEW ALBANY, INDIANA, ASSIGNOR TO THE COMPUTING SCALECOMPANY, OF DAYTON, OHIO, A CORPORATION OF OHIO.

' RECORDING WEIGHING SCALE Specification of Letters Patent.

Application filed February 18, 1911.

Patented Dec. 12, 1911. Serial No. 609,369.

To all whom it may concern:

Be it known that I, Euros Y. THOMAS, a citizen of the United States,residing at New Albany, in the county of Floyd and State of Indiana,have invented certain new and useful Improvements in Recording Weighing-Scales; and I do hereby dcclare'the following to be a full,clear, and exact description of the same, reference being had to theaccompanying drawings, forming a part of this specification, and to thefigures and letters of reference marked thereon.

This invention relates to recording scales and is particularlyapplicable to that type of scales employed in the weighing of coal fromthe mines especially when the weights recorded form the basis for theminers compensation,

The objects of the invention are to provide a recording scale mechanismwhich will not interfere with or render inaccurate the weighingmechanism and which will effectually lock the recording tape or paperstrip when the scale beam begins to tip and hold the same locked untilthe weighing operation is completed.

Referring to the accompanying drawings,- igure 1 is an elevation withone side of the cover removed of a recording weighing mechanismembodying the present improvements; Fig. 2 is a sectional elevationshowing the lock for the record strip Fig. 3 is a detail sectionalelevation showing the platen or stamp; Fig. 4 is a similar view of therecord strip tension and creasing device; Fig. 5 is a detail of thelever 01' trigger for the record tape lock; Figs.

6 and 7 are details of the guide forming a part of the supportingmechanism for the record tape and ink ribbon.

Similar letters of reference throughout the several figures indicate thesame parts.

The accompanying drawings illustrate what may be termed the upperstructure of a scales, the mechanism illustrated being adapted forconnection through a draft rod A with the beams and levers of any ordinar' scale embodying the usual pan for coa or platform. for the load tobe weighed. At its upper end the draft rod A is pivotally connected witha beam B pivoted at b and adapted for connection with counterbalancingmechanism for the load which may be a spring or springs as wellunderstood, but in the preferred construction and i, consists ofcounterbalance weights. imum weight C is suspended from he lea end ofthe beam and the forward end the beam is connected with the smaller of aseries of pick-up weights D. lV-hen the load is great enough to lift theminimum weights C the pick-up weights are lifted in succession as theload is increased, all as is well understood in the art. The pick-upweights provide an eflicient means whereby the deflection of the beamwill be caused to take place in stages or steps as each successiveweight comes into action, a feature which is desirable in recordingscales where therecord is printed from impression surfaces brought. tothe printing oint'in succession by the movement of the cam, inasmuch asthe beam will come to rest at definite points which will correspond tothe proper positioning of the impression surfaces. The impressionsurfaces or type faces are preferably on a printing segment E journaledin a standard 6 and having an arm E connected by links 6 with the beam,while the pick-up weights .1) are connected through a flexibleconnection. d with a segment F forming a part of or connected with theprinting segment. For purpose of adjustment, the segment F ma beutilized as a carrier for adjustable sea ing weights f for securingaccurate balancing of the parts.

The parts described are conveniently mounted in a casing G which may bemade in halves or with one side removable and held in place by twolocks, the key of one look to be kept by the miner and the other by theoperator, so as to prevent tampering with the mechanism without theknowledge of both. The printing segment is adapted to present theimpression surfaces at a printing point near the top of the casing andin position opposite a platen or stain H (Fig. 3) mounted to slide in afra e and to be depressed by hand when an impression is to be made.

Extending between the laten H and printing segment is an ink rilibon Iadapted to be wound back and forth between reels onsp'ools K journaledin houses 10 on the casing G and above the ink ribbon and transversethereto is a record strip or paper tape L which maybe drawn from asupport or reel M before or after each load is weighed, but which isautomatically locked against movement in either direction during theweighing of the load or during the time'- .plate has an openingtherethrough at the printing point and transverse guide ways for theribbon and tape, as will be readily understood from Figs. 6 and 7. Thelock for the record tape is arranged within the. casing and engages thetape in proximity to the printing point. It consists of a pivoted memberP having tape engaging or pene trating points 2 and normally underpressure as by a spring Q tending to lock or penetrate and hold the tapeagainst IROVB- ment. The end of the pivoted member P is connected with alever or release trigger P pivoted on a standard 1) and'having one endprojecting in position to be engaged by the beam so as to hold the lockreleased when the beam is in normal position with no load on the scale.Convenieinly, the end of the lever P projects over the end of the beamand is released by the initial downward movement of the beam, wherebythe first portion of the load placed on the scale sets the tape lock andfurther movement of the beam is free from any influence of the lockwhich might tend to disturb the balance of the scale, for the beamimmediately moves out of engagement with the lever leaving the recordtape a locked until the record is made, the load discharged from the panand the beam returned to its normal position. The operator may then drawthe record tapeforward and'the parts will be ready for another weighing.

Having thus' described myinvention, what I claim and desire to secure byLetters Patent of the United States, is:

1. In a recording weighing scale, the combination with a weight printingmechanism and beam for setting the same in accordance with the weightof' the load, of a record tape support and a normally operative lock forthe tape with connections intermediate the lock beam whereby the lock isheld in unlocked position by the beam when in normal position andreleased to lock :the tape by the initial movement of the beam inweighing. I

2. In a recording weighing scale, the combination with a weight printingmechanism embodying a record tape guide, platen and impression segment,of a lock for the record tape, a beam, connections intermediate the lockand beam and with which the beam cooperates when in normal position tohold the lock released, connections between the beam and impressionsegment and load counterbalancing means for moving the beam inopposition to the load whereby when the counterbalance is overcome bythe load the beam will be moved and the record tape will be locked.

3. In a recording weighing scale, the combination with a beam andcounterbalancing means for. controlling the movement of the beam by theload being weighed, of a printing segment operatively connected with thebeam to present charactersat a printing point to indicate the weightofthe load, a record tape guide, a lockfor the record tape, connectionsintermediate the lock and beam whereby the lock is held out of operativeposition by the beam when in normal position, and released to lock thetape by the initial movement of the beam in weighinga load. y

' 4. In a recording weighing scale, the

combination with a weight printing mechanism lncluding platen, a-recordtape support and a printing segment, and a beam connected with thesegment for setting said segment in accordance with the weight of theload, of a lock for the tape embodying tape penetrating points, meanstending to hold said points in engagement with the tape and a leverconnected with the lock and projecting in the path of the beam wherebythe lock is held released when the beam is in normal position.

RUFUS Y. THOMAS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner 0t Patents,

. Washington, D. G.

